I have been using WMC with Ceton 6ETH tuner for more than two years. I keep a close eye on the Ceton log files, especially when strange things happen.
MC has been working ok, but this morning would not tune any channels with the Ceton tuners (meanwhile SiliconDust tuners were working). So I checked the log files of the Ceton and found something I have NEVER seen before. Hundreds of entries "WARNING: invalid flow_id 2". I rebooted the Ceton device, looked at the logs and still see the same warnings. Played some live tv in MC, working fine right now but the Ceton logs are still continuously getting this warning in the log:
Jan 1 00:26:44 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:26:44 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:26:45 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:26:45 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:26:45 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:26:46 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:26:46 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:26:46 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:26:47 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:26:47 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:27:11 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:27:44 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:27:45 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:27:45 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:27:45 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:27:46 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:27:46 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:27:47 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:27:47 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:27:47 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:27:48 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:28:11 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:28:48 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:28:48 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:28:49 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:28:49 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:28:49 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:28:50 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:28:50 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:28:51 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:28:51 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:28:51 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:29:12 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:29:45 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:29:45 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:29:45 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:29:46 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:29:46 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:29:46 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:29:47 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:29:47 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:29:48 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:29:48 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:12 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:37 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:39 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:39 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:40 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:40 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:40 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:41 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:42 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:47 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:47 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:48 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:50 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:50 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:50 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:51 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:51 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:51 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:52 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:52 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:53 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:53 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:30:56 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:00 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:12 ocur[21]: ocur: STT time Mon Jan 18 17:17:42 2016 UTC
Jan 1 00:31:12 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:16 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:20 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:34 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:34 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:34 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:35 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:35 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:35 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:39 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:44 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:45 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:45 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:45 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:46 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:46 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:47 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:47 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:47 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:48 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:31:56 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:01 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:12 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:15 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:20 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:34 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:35 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:35 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:36 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:36 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:36 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:37 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:40 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:40 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:40 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:41 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:48 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:48 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:49 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:49 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:50 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:50 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:50 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:51 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:51 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:51 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:32:58 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:01 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:12 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:16 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:19 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:35 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:39 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:42 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:42 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:42 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:43 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:43 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:43 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:43 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:44 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:44 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:45 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:45 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:45 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:46 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:46 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:33:47 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:34:13 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:34:27 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:34:28 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:34:28 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:34:28 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:34:29 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:34:29 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:34:40 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:34:41 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:34:41 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:34:42 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:34:42 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:34:42 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:34:43 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:34:43 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:34:44 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:34:44 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:35:13 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:35:38 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:35:39 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:35:39 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:35:40 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:35:40 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:35:40 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:35:41 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:35:41 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:35:41 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:35:42 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:36:13 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:36:38 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:36:39 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:36:39 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:36:40 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:36:40 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:36:40 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:36:41 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:36:41 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:36:41 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:36:42 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:37:13 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:37:43 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:37:43 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:37:43 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:37:44 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:37:44 ocur[21]: ocur: WARNING: invalid flow_id 2
Jan 1 00:37:45 ocur[21]: ocur: WARNING: invalid flow_id 2
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There's lot's more, but board character limit won't let me post it all!